Carbureter.



J. S. GOLDBERG.

GARBURETER.

APPLICATION FILED AUG.17,1908.

928, 1 2 1. Patented July 13, 1909.

2 SHEETS-SHEET 1.

Wflnasses Invanidr Kim "fa a no a W" s l P. T l lll tl lt JUIIN S. GOLDBERG, OF CHICAGO, ILLINOIS, ASSIGNOR T SIItOI/IBERG MOTOR DEVICES COlt IPANY, OI 'GIIICAGO, ILLINOIS.

its. easier.

To all whom it may concern:

Be it known that I, .Ion'n S. Gonoesno, a citizen'ot' the United States, residing at Chicago, in the county of Cook and State of Illinois have invented a certain new and useful Improvement in Carburetors, Case l lo. 1a,) of which the following, is a full clear, concise, and exact description, reference being'had to the accompanying drawin s, forming a part oil this specification.

My invention relates to carburetors, par-i ation. particularly when the engine speed.

passes through a certain rate and operates high speed. It is therefore, the main purpose of my invention to so construct a carburetor that all these operation variations will be kept pace with and quickly provided tor, so that the engine will run with equal elticiency at all times and under all conditions.

Generally speaking my invention may be considered as an improvement over the construction shown in my copending applica tion No. 409,696, tiled January 7, 1908 and covers improved nozzleconstruction and improved air inlet arrangement. I provide an elongated nor/sale having; an outlet at its end tilt and intermediate outlets lying in the apex of a conical air passageway below these intermediate outlets. he automatically controlled air inlet supplies air to the passageway at the intermediate outlets and an auto iliary automatic air inlet supplies air to flow across the end of the nozzle. The first automatic air inlet is controlled to be responsive under ordinary conditions of operation and oil is extracted only from intermediate outlets. 'Iheauxiliary air inlet becomes responsive when the speed of the engine to be supplied passes beyond certain rate, at which time oil. also eatracted from the Specification oi Letters Patent.

application filed August l'l, 1908.

Patented Joly l3 toga aerial No. all-aver.

end outlet ot the nozzle. 'lhe two nozzle outlets and the two automatic air inlet controlling mechanisms cooperate to maintain a uniform and most etlicient mixture for the engine.

In the accoin 'ianying drawings my invention is clearly illustrated: Figure 1 is a side elevation ol the carbureterot my invention, Fig. 2 is a top view oi the carburetor with the float valve and controlling mechanism therefor removed, and Fig. 3 is a sectional view taken on line 33 of Fig. 2.

The carburetor frame comprises the body part I, from the lower edge of which extends a shelf 5.5 which forms the lower wall of the :tloat chamber It is thought unnecessary to describe in detail the construction and arrangei'nent of this tloat valve mechanism, as it may be exactly the same as that disclosed in my copending application referred to. l orining part of the,body part is an outer cylindrical wall or shell 3 through-which extends the inner shell 4c. The annular base section 5 connects together the lower edges of the walls 3 and 4-, the annular chamber 6 being stormed between said walls to serve as a heating jacket, and adapted to be connected with a source of heating; fluid or gas by means of the outlets I. The lower section 8 of the inner shell 4 is conical, as shown, and converges upwardly, while the upper part 9 oil the shell diverges, as shown. A flange 10 extends downwardly trout the wall 5 and forms a continuationo'l theinner shell l, the passageway ll through said inner shell communicating at its lower end with the atmosphere.

ll lntending diametrically across the lower end of the passage-way 11 is the bridge 12, which has the lon ;itudinal passage-way 13 leading from the oat controlled oil chamber 3. Inter-posed in the bridge 12, and axially arranged in the passage-way It is the supporting tube ll. which communicates with the passage-way 13. The upper end of this tube has a threaded outle 15 through which the nozzle 16 threads and extends upwardly. The lower end or the tube la is closed by a screw plug 17. llhreaded over the lower end of the tube part is the priming cup 18 and the locking nut 19. This primin g" cup is longitudinally adjustable on the tribe It so that the upper edge of the cup may be brought varying distances above the level ol? the lower'edge or llanee The Itlli upper section 16? of the nozzle is of less diameter than the lower section 16 the conical surface 20 between the nozzle sections being in the plane of the inner faceoi' the conical shell section 8. Intermediate outlets 21 from the nozzle interior terminate in said conical area 20, as shown, while the outlet 22 leads from the upper end of the nozzle.

Extending upwardly from above the wall section 3 is the cylindrical wall section 23, forming the throttle passage-way across which extends the shaft 24: supporting the throttle disk 25; to one end of said shaft the throttle lever 26 is secured and may be adjusted and operated in the manner as described in my copending application already referred to. The edge of the part 23 terminates in the connecting flange 27, by means of which the carbureter may be connected with the engine to be supplied;

Extending laterally into the passage-way 11 is the air passage-way 23 formed by the tubular frame 29. 'llhis passage-way 28 terminates just above the intermediate outlets 21. An opening 30 in the upper wall of said frame 28 receives the valve seatframe 31, whose lower ed "e32 forms a seat for the disk valve 33, whi n is carried by the valve stem 341:; this stem passing through the hub 35 of the frame 31.

Depending :trom the lower wall or" the frame 29 is a sleeve 36forming a passageway or pocket 37, concentric with the opening 30. A guide plug 38 screws into the lower end of the stem 3%. A spring 39 within the pocket 37 engages-the" plug 38 and the valve 33 and tends to hold this valve against the seat 32,, An adjusting head 40 is secured to the plug 38 and a flange or sleeve 41 extending from said head encircles the sleeve 36 and has longitudinal grooves 42. 'AlS'O depending from the end of the frame 29 is the arm l3 having at its lower nd the threaded opening 44 for receiving the barrel 45 in which is a spring 4:6 which bears against a detent block l7 in said barrel and tends to hold said block within the grooves 4A to lock the sleeve 41, and therefore, the plug 38 against accidental movement after the spring 39 has been adjusted to give the proper tension for the valve 32. Above the frame 29 another frame 48 extends laterally and forms a passage-way 4C9 communicating with the upper end of passage-way 11. An opening 50 in the top of said frame 48 receives the valve frame 51 forming at its lower edge a valve seat 52 to be engaged by the disk valve 53, which is carried at the lower end of the valve stem 54. The frame 51 has a central hub 55 through which the stem isguided, and this hub is threaded to receive the nut or sleeve 56 for the horizontal flange head 57 forming one abutment for the spring 58. A nut 59 adjustably threads on the upper end of stem 54 and has a head 60 forming the upper abutu'lent for the spring 53, a cotter pin 61 holding the nut 59 in adjusted position. An arm (32 also extends upwardly from the frame 51 and supports the barrel G3 in which a spring 54 presses against the detent block 65, tending to hold said block in the grooves 66 formed in the sleeve 56 to prevent accidental rotation of said sleeve after adjust ment has been made thereof to secure the proper tension of spring 58.

Oil is fed into the float chamber and maintained therein at a constant level, this oil flowing through passage-way 13 into tube 14 and standing in the lower nozzle section at the same level as in the float chamber this level being indicated by the dotted line 1. if the engine is cold and needs priming, the Heat mechanism is operated to raise the level for a moment to cause flow of oil through the outlets 21 and into the priming cup 18. 'l he throttle disk being then partly open and the engine cranked, air will be sucked over the edge of the priming cup through the oil therein, then about the edge of the flange 10 and upwardly through the passage-way 11 and into the engine, oil being also drawn i rom the openings 21 by the air rushing through the passage-way 11, and a very rich starting mixture is thenlprovided. Under ordinary circumstances it will be unnecessary to prime the carbureter, as sufficient oil will be drawn from the openings 21 upon cranking of the engine. The air drawn into the bottom of the passage-way 11 meets the conical converging walls of the section 8 and by the time the air reaches the openings 21, it has attained great-,1 velocity and consequently great suction force, and suilicient oil will be drawn from the openings 21 to start the engine and to kee it running ethciently at ordinary speeds. litter the air passes the openings and has becomie saturated with oil, it passes into the diverging part leading to the throttle chamber and expansion occurs in this diverging part, and also more or less agitation of the air an'd oil so that the oil is thoroughly mixed with the air to cause a rich explosive mixturex/At starting, therefore, nearly all the airfenters through the bottom of the passage-way 11 and is concentrated on the outletsj21'. After the engine, however, picks up speed, the automatic valve 33 becomes operati vie and air is drawn through passage-wa y28 in proportion to the suction created by the engine, and this air meeting the upward" stream of air and oil becomes mixed therelvith and automatically supplies the proper jproportion of air for the explosive mixturty iland the amount of air through the aupmatic valve, of course, varies as the suction effort varies. By adjusting the screw plug 38 and therefore the tension of spring 39, the operation of this automatic valve can be regulated. The upill) in supplying air to the mixture.

sea-rat per section 16 of the nozzle has the outer threads or ballle extensions 67 in its outer surface, and these assist in breaking up the oil and causing; greater agitation of the air and oil. it it were not for these battle eatensions part of the oil drawn through the open-- ings 21 might be drawn along the smooth surface oi the nozzle and would not become disintegrated. 'llhe automatic valve serves to regulate the air supply for ordinary speeds ot the engine, but after the speed reaches a certain rate this valve cannot alone supply the demand for air and consequently the auxiliary valve 53 is provided. The

spring 58 controlling the valve 53 is heavier than the spring 3?, and, therefore, greater suction is necessary to cause operation of valve 52. l-lowever, when the engine reaches a certain rate of speed or generates a certain degree oi suction, the spring fill responds and the valve 53 becomes operative to assist The air rushing;- through passage-Way t9 into the throttle chamber passes over the outlet the nestle end and assists in drawing oil from the nozzle so that the mixture will have a sullicient oil proportion. l-ly adjusting the head 56 on the hub 55, the tension out the spring" 58 and the operation at valve 53 can *eulated. 'lhe tloors ot the frames and till slope toward the passage-Way ll so that should any oil, as tor instance, oil oil condentutiou reach the chambers 28 or all, this will immediately flow haclt into the passage-Way ll and into the path oi the air rushing therethrough to be absorbed by said air and turned into gas. Thus for control oi the mixture under ordinary speeds, and ordinary conditions oi operation oi. the en gine, nozzle outlets ill supply suiticient oil, and the direct air inlet at the bottom oil the passage-way 11 and automatic valve 32 will supply sutlicieut air for the mixture. When the suction of the engine passes a certain limit, then oil will be drawn through the tip outlet of the nozzle and the increased air supply required for this increased oil supply 15 automatically turnished and controlled by the valve lloth the automatic air valves being); adjustable. uniformity and eii'iciency of operation of the carburetor can be controlled to a nicety. After the carburetor is connected with a ccrtaiu engine permanent adjustment can be made very quickly and then the carburetor Will keep pace with all the conditions of operation of the engine and the mixture supplied Will be uniform and always at greatest etlicieney.

lt will be noticed thatthe heating jacket surrounds the entire passage-Wu y 11 and also that the frame 25) )asses through the heating jacket, and also t at the lower part of the frame 48 is in touch with the heating jacket. The Walls near the passageway are therefore \varnie'd and therefore preventcondensation and disintegration of the gas. The entire trame part of the carburetor, including the base is cast in one piece, thus making a very strong and leakproof structure.

tlhanges may, of course, be made in the detailed construction out the various parts, and l do not, therefore, Wish to be limited to the exact construction and arrangement shown.

it desire to secure the following claims by Letters Patent:

l. in a carburetor, the combination of a frame forming a passageway open at one end to atmosphere and adapted lfor connoo tion at its other end With an engine to be supplied, a nozzle extending into such sageway and adapted :t'or connection with. a source of oil supply, said nozzle having outlet at an intermediary part thereof its end, an auxiliary air inlet near the end oi? the nozzle, and an additional air inlet near said intermediate outlet, said auniWu-y air inlet and said additional air inle being; auton'iatieally controlled independently of each other to supply air to the passageway.

lo a carbin'eter, the combination ot a vertical passageway open its lower end to atmosphere and idap c1 for connection at its other end with an engine to be sup-- plied, a nonzle extending upwa dly throu b. said passage-Way and adaptedl coupon 'on with a source of oil supply, said noasle having a loiver outlet and an upper outlet, an air inlet to said passage-Way near said lower outlet, a spring controlled checlr valve controlling; the flow or? air through said inlet, an auxiliary air inlet near said upper outlet, and a spring-controlled checlr valve for said. auxiliary air inlet.

in a carburetor, the combination ot a vertical passageway open. at its lower end to atmosphere and adapted tor connection at its other end with an engine to be supplied, a nozzle exteiulingupwardly through said passageway and adapted for connection with a source of oil supply, there being outlet from said nozzle at an intermediate part and at the end thereof, an auxiliary air inlet to said passageway near said intermediate out let, a check valve for said auxiliary air inlet controlled by a spring, an additional auxiliary air inlet near the nozzle end. and a check valve in said inlet control 1 by a spring, the spring of the additional auxiliary air inlet valve being stronger than spring or the auxiliary air inlet valve.

t. In a carbureter, the combination of a vertical passageway, a main air inlet at the lower end of said passage-way. said passageway being adapted for connection at its-upper end with an engine to be supplied, a nozzle (Xl(llll11l,l' upwardly through the passage-Way and adapted for connection with a source of oil supply, said nozzle having outlet at an intermediate part and at the end thereof, an auxiliary air inlet to the passage way near said intermediate nozzle outlet, a check valve controlled by the suction at the outlet of the passage-way to admit air through the auxiliary inlet and to the passageway, an additional auxiliary air inlet to the passageway near the nozzle end, and a check valve for said additional air inlet 1 also controlled by the suction at the passageway outlet, greatersuction being required to operate the additional inlet check valve than is required to operate the auxiliary inlet valve.

5. In a carbureter, the combination of a vertical passage-way having its lower end open to form a main air inlet, a section of the passage-way walls from said air inlet converging upwardly to be conical, the section of the passage-way walls above the conical section being diverging, a nozzle extending upwardly and axially through the passage-way and adapted for connection with a source of oil supply, said nozzle having outlets at its intermediate part near the apex of the converging conical part of the passage-way whereby air flowing upwardly through the conical part will be concentrated to flow with great velocity by such intermediate outlets, said nozzle having also an outlet at its end, an auxiliary air inlet into the divergi, g part of the passage-way and near the no izle end, and a valve automatically controlling the tlow of air through said inlet in proportion to the suction at the out let of the passage-way.

6. In a carbureter, the combination of a vertical passage-way having its lower end open to form a main air inlet, a section of the passage-way walls from said air inlet converging upwardly to be conical, the section "of the passage-way walls above the conical section being diverging, a nozzle ex-. tending upwardly and axially through the passage-way and adapted for connection with a source of oil supply, said nozzle having outlets at an intermediate part thereof need the apex of the converging conical part of the passage-way whereby air flowing upwardly throu h the conical part will be concentrated to ow with great velocity by such intermediate outlets, an auxiliary air inlet into thepassage-way near the intermediate outlets, a valve automatically controlling the fiow of air through said auxiliary inlet in 'proportionto the suction at the passageway outlet, said nozzle having also outlet at its end, anadditional auxiliary air inlet into the div'ergin part of the passage-way and near the nozz e end, and a valve automatically controlling the flow of air through said additional inlet in proportion to the suction at the passage-way outlet.

- 7. In a carburetor, the combination of a vertical passage-way having its lower end open to form a main air inlet, a section of the passage-way walls from said air inlet converging upwardly to be conical, the section of the passage-way walls above the conical section being diverging, a nozzle extending upwardly and axially through the passageway and adapted for connection with a source of oil supply, said nozzle having outlets at its intermediate part near the apex oi": the converging conical part of the passage way whereby air flowing upwardly through the conical part will be concentrated to flow with great velocity by such intermediate outlets, an auxiliary air inlet into the passageway near the intermediate outlet, a valve automatically controllin the flow of air through said auxiliary in et in proportion to the suction at the passage-way outlet, said nozzle having also an outlet at its end, an additional auxiliary air inlet into the diverging part of the passage-way and near the nozzle end, and a valve automatically controllin the flow of air through. said additional inletin proportion to the suction at the passage-way outlet, the additional auxiliary air inlet valve-being adjusted to require more suction for its operation than the first auxiliary inlet valve,

8. In a carbureter, the combination of a mixing passageway, a fuel nozzle extending into said passageway and provided with zones of outlet openings, and an air inlet at each zone, said air inlets being automatically controlled independently of each other. Q. in a carbureter, the combination of a frame forming a mixing passageway, a fuel nozzle extending into said passageway and provided with zones of outlet openings, an air inlet at each zone, and check valve mechanisms for controlling each inlet, the check valve mechanisms operating independently of each other.

10. In a carburetor, the combination of a frame forming a passageway, a fuel nozzle extending into Sill passageway and provided with zones of outlet openings, an air inlet at each zone, and, check valve mechanism for controlling each inlet, said check valve mechanisms being mechanically independent.

11. In a carbureten'the combination of a frame forming a mixing passageway adapted for connection at its upper end with an engine to be supplied, a fuel nozzle extending upwardly through such passageway and provided with zones of outlet openings, an air inlet to said passageway at each one of said zones, a check va lve mechanism for each inletfor controlling the flow of air thereto, the check valve mechanisms being controlled independently ofie'ach other by the suction within the passageway, and one of the said valve mechanisms requiring greater suction for its operation than the other.

12.111 a carburetor, the combination of a.

frame forming a mixing passageway adaptl tending upwardly through said passageway ed for connection at its end with an engine to be supplied, a fuel nozzle extending upwardly through said passageway and provided with Zones of outlet openings, an air inlet to said passageway at each zone, spring controlled check valve mechanism for each air inlet, adjusting mechanism for each check valve mechanism for the spring control thereof, said check valve mechanisms being entirely independent of each other.

13. In a carburetor, the combination of a frame forming a vertical mixing passageway open at its lower end to atmosphere and adapted for connection at its upper end with an engine to be supplied, a fuel nozzle exand provided with zones of outlet openings, an adjustable main valve at the lower end of said trains for controlling the flow of air into the lower end of said passageway, an auxiliary air inlet to the passageway of each one of said zones, and automatic check valve mechanism for each auxiliary air inlet, said check valve mechanisms operating independently of each other.

In witness whereof, I hereunto subscribe my name, this 14th day of August, 1908.

JOHN S. GOLDBERG. Witnesses C-n'xniins J. SCHMIDT, Greener: E. IIIGHAH. 

